perplexus.info :: Numbers : Singular squares

Singular squares (Posted on 2008-11-23)

What is the greatest perfect square with different digits in ascending order from left to right?

The same, in descending order?

What is the best way to narrow this search?

See The Solution Submitted by pcbouhid

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Subject	Author	Date
Answer	K Sengupta	2008-12-27 06:13:33
computer solution	Charlie	2008-11-23 17:43:16
partial answer (spoiler)	Dej Mar	2008-11-23 17:30:01

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